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Finding the Fourth Proportional to 19,776.63, 29,664.95 and 5,925.63

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Solution

The fourth proportional to 19,776.63, 29,664.95 and 5,925.63 is: 8,888.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.63 : 29,664.95 = 5,925.63 : x
  2. Step 2: Convert to fraction form
    19,776.63/29,664.95 = 5,925.63/x
  3. Step 3: Cross multiply
    19,776.63x = 29,664.95 × 5,925.63
  4. Step 4: Simplify right side
    19,776.63x = 175,783,517.67
  5. Step 5: Solve for x
    x = 175,783,517.67/19,776.63
  6. Step 6: Final answer
    x = 8,888.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.